Opie the dog helped save the life of an abandoned kitten named Roscoe and, a year later, their owners say the two are like brothers.

“There's just a bond there that I think is exactly like human siblings,” Lia Spilka told ABC News. "There was never moment where they didn't bond. It's as if they knew from the start they'd be close."

Opie and Spilka’s partner, James Roode, were on a walk around their neighborhood in Ontario, Canada, last August when Opie heard a squeak coming from the bushes.

Opie led Roode to a newborn kitten pinned underneath a log, and the dog continued to cry and whine until his owner took the shirt off of his back to pick up the kitten and carry the injured animal inside.